CN101198441A - Method and device for processing crankshaft and burnishing roller for crankshaft - Google Patents

Method and device for processing crankshaft and burnishing roller for crankshaft Download PDF

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Publication number
CN101198441A
CN101198441A CNA200680021336XA CN200680021336A CN101198441A CN 101198441 A CN101198441 A CN 101198441A CN A200680021336X A CNA200680021336X A CN A200680021336XA CN 200680021336 A CN200680021336 A CN 200680021336A CN 101198441 A CN101198441 A CN 101198441A
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China
Prior art keywords
bent axle
axial region
polishing roll
roll
polishing
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Granted
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CNA200680021336XA
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Chinese (zh)
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CN101198441B (en
Inventor
千叶大辅
川隅胜之
森荣次
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Priority claimed from JP2005175184A external-priority patent/JP4753634B2/en
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority claimed from PCT/JP2006/312048 external-priority patent/WO2006135014A1/en
Publication of CN101198441A publication Critical patent/CN101198441A/en
Application granted granted Critical
Publication of CN101198441B publication Critical patent/CN101198441B/en
Expired - Fee Related legal-status Critical Current
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  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A pair of burnishing rollers (16a, 16b) formed in a roughly disk shape are linearly disposed oppositely to each other on both sides of the shaft part (24) of a crankshaft (18). The crankshaft (18) is rotated about its axis by the rotatingly driving action of a rotating driving source (M). The pair of burnishing rollers (16a, 16b) are displaced in a direction apart from each other while the shaft part (24) of the crankshaft (18) is held by the outer peripheral surfaces (20) of the pair of burnishing rollers (16a, 16b) to apply a rolling to the crankshaft.

Description

The polishing roll that is used for the method and apparatus of machining crankshafts and is used for bent axle
Technical field
The present invention relates to a kind of being used for carries out machined (processing) with the method and apparatus with the polishing of bent axle axial region to the bent axle that is used for vehicle motor etc., and a kind of bent axle polishing roll that is used for polishing by the outer surface of roll-in bent axle axial region the bent axle axial region.
Background technology
Up to now, the polishing of the axial region of the known bent axle that engine is used is to boost productivity and to improve the surface nature of axial region.
For example, patent documentation 1 discloses a kind of technological thought: make the polishing roll machining surface pressure that is applied to axial region from polishing roll littler than locating in the central at the two ends of polishing roll, thereby the two ends that prevent the bent axle axial region become circle.
Patent documentation 1 discloses a kind of roller polissoir that is used to utilize polishing roll polishing bent axle, thereby this equipment comprises a pair of backing roll that rotatably supports the bent axle axial region, size is with the essentially identical polishing roll of the width of axial region and be used for engaging the pad roller (backup roller) that the extruding polishing roll contacts itself and axial region rolling with polishing roll.
Patent documentation 2 discloses a kind of roller finishing method and equipment that the workpiece with the indented central shape that can easily utilize roller polishing is polished of being used for.By common polishing roll the elevated regions of workpiece is polished to desired surface roughness, thereby and use the indented central zone can be to this indented central zone supplying lubricating oil suitably as oil storage portion, thereby improve durability and operability.
In the patent documentation 2 disclosed polissoir comprise a pair of backing roll that rotatably supports crankpin, support described backing roll support member, be used for from the polishing roll of the distally extruding crankpin of backing roll and the support that rotatably supports polishing roll.
Patent documentation 3 has disclosed a kind of roller polishing tool, and it comprises that the cross section is circular axle shape tool base, and this tool base is furnished with a plurality of spines on its outer surface.At least one spine has the lateral edges of circumferentially crossing the bus extension along tool base.Each spine is shaped so that any circumferential position that remains on tool base along the width sum of the spine that axially records of tool base is all basic identical.
According to disclosed technological thought in the patent documentation 1,2, be formed for the chamfering of the instrument that withdraws from the axial end portion place of bent axle axial region.Near the chamfering end is compressed to prevent to form fillet when polished roller pushes.Disclosed technological thought is that to have chamfering with bent axle be prerequisite in the patent documentation 1,2.
If by polishing roll the bent axle axial region that does not have chamfering is polished as the present invention, then, just need to simplify traditional machine-tooled method to improve the surface nature of axial region owing to needn't consider the formation of fillet.
In the patent documentation 1,2 disclosed polissoir complex structure and manufacture very expensive because they need comprise described a plurality of parts to backing roll (support member), pad roller etc.
The advantage of disclosed roller polishing tool is in the patent documentation 3, if for example be limited with oilhole in the bent axle axial region (polished surface), when axial region was polished, the spine of roller polishing tool fell into oilhole easily so, thereby damages the periphery of oilhole opening.
Patent documentation 1: Japanese kokai publication hei 06-190718 communique
Patent documentation 2: TOHKEMY 2004-276121 communique
Patent documentation 3: Japanese kokai publication hei 04-115866 communique
Summary of the invention
Overall purpose of the present invention is to provide a kind of being used for that bent axle is carried out mach equipment, does not have the surface nature of the bent axle axial region of chamfering with improvement.
Main purpose of the present invention is to provide a kind of being used for that bent axle is carried out mach method, does not have the surface nature of the bent axle axial region of chamfering with improvement.
Another object of the present invention is to provide a kind of being used for that bent axle is carried out mach equipment, the designs simplification of this equipment and manufacturing cost reduce.
Another purpose of the present invention is to provide a kind of bent axle polishing roll, and this bent axle polishing roll is used to improve the surface nature that does not have the bent axle of chamfering axial region, even and be used for also can suitably polishing this axial region when this axial region is limited with oilhole.
According to the present invention, a pair of polishing roll of plate-like that is is roughly arranged across the bent axle axial region between them opposite each otherly, and at described bent axle during around himself axis rotation, by the outer surface clamping and the roll-in bent axle axial region of described polishing roll.
Therefore, according to the present invention, described axial region has the surface nature of improving by than simple machine-tooled method in the past.As a result, improved the surface nature that does not have the bent axle of chamfering axial region, and the designs simplification of bent axle machining apparatus and manufacturing cost reduction.
In addition, according to the present invention, the outer surface that is used for the described polishing roll of roll-in bent axle axial region has a plurality of spines, and described spine has equidistant axially spaced respective peaks portion, and the distance that adjacent two the described peak portion in the described spine separates each other is greater than the internal diameter of oilhole.Therefore, even have oilhole in the polished zone, described spine can not fall into this oilhole yet, thereby can not damage the periphery of this oilhole.
Therefore,, improved the surface nature that does not have the bent axle of chamfering axial region according to the present invention, even and have oilhole in the polished zone, also can suitably polish described axial region.
Description of drawings
Fig. 1 is the plane of expression according to the general structure of the bent axle machining apparatus of embodiment of the present invention;
Fig. 2 is the local amplification view of bent axle machining apparatus shown in Figure 1;
Fig. 3 is the local amplification view with bent axle machining apparatus of the supported polishing roll in both sides;
Fig. 4 is a local abridged amplification view, represents the mode of a pair of polishing roll displacement in clamping and roll-in bent axle axial region;
Fig. 5 is a local abridged amplification view, represents the displacement mode of a pair of skew polishing roll;
Fig. 6 is a local abridged amplification view, the outer surface as the roll-in surface of expression polishing roll;
Fig. 7 is a local abridged amplification view, and expression is along polishing roll being squeezed into the mode that contacts with axial region with the direction of the axis normal of axial region;
Fig. 8 is a local abridged amplification view, and expression is squeezed into polishing roll the mode that becomes predetermined angular ground and axial region inclination to contact with direction perpendicular to the axis of axial region;
Fig. 9 is the plane of expression according to the general structure of another bent axle machining apparatus that is combined with polishing roll of embodiment of the present invention;
Figure 10 is the local amplification view of bent axle machining apparatus shown in Figure 9;
Figure 11 is the local amplification view with bent axle machining apparatus that the supported polishing roll in both sides shown in Figure 9 is arranged;
Figure 12 is a local abridged amplification view, represents a plurality of spines on the outer surface of polishing roll shown in Figure 9;
Figure 13 is a local abridged amplification view, represents the mode of a pair of polishing roll displacement in clamping and roll-in bent axle axial region;
Figure 14 is a local abridged amplification view, represents the displacement mode of a pair of skew polishing roll;
Figure 15 is a local abridged amplification view, is illustrated in the relation between the oilhole that limits in spine on the outer surface of polishing roll shown in Figure 9 and the axial region;
Figure 16 is a local abridged amplification view, and expression is along polishing roll shown in Figure 9 being squeezed into the mode that contacts with axial region with the direction of the axis normal of axial region; And
Figure 17 is a local abridged amplification view, and expression will polishing roll shown in Figure 9 be squeezed into the mode that becomes predetermined angular ground and axial region inclination to contact with direction perpendicular to the axis of axial region.
The specific embodiment
Among Fig. 1, Reference numeral 10 expressions are according to the bent axle machining apparatus of embodiment of the present invention.
Bent axle machining apparatus 10 is installed on the capstan head (or throw base portion) of the capstan lathe of being controlled by unshowned digital control system (or Mechanical Processing Center).Bent axle machining apparatus 10 comprises: the first adapter 12a and the second adapter 12b, and they can be along the direction displacement of orthogonal three axle X, Y, Z; A pair of polishing roll 16a, 16b, they rotatably are supported on respectively on the rotating shaft 14 of the first adapter 12a and the second adapter 12b; And first the maintaining body 22a and the second maintaining body 22b, they are used to engage corresponding two axial end portions of bent axle 18 (below be called workpiece 18) and keep workpiece 18, make that workpiece 18 can be by rotary driving source M around himself axis rotation.
Polishing roll 16a, 16b arrange (see figure 4) across axial region 24 (polished zone) linearity of workpiece 18 each other opposed to each other perpendicular to the axis of workpiece 18, be arranged in corresponding position, described position is offset the equidistance (see figure 5) in opposite direction from the axis that the linear position perpendicular to the axis of workpiece 18 is parallel to workpiece 18 perhaps opposite each otherly.
Each polishing roll 16a (16b) is the identical shaped of roughly plate-like, and has the outer surface 20 of the similar single planar web of shape.As shown in Figure 6, the outer surface of each polishing roll 16a (16b) (roll-in surface) 20 has the fillet 26 that section is an arcuate shape on a side surface, and has the single inclined surface that extends to the angle 28 on another side surface from fillet 26 with respect to the angled θ 1 of line L parallel with the axis of axial region 24 obliquely continuously.Angle θ 1 should be preferably set to about 1 degree.
The fillet 26 of each polishing roll 16a (16b) can have and likens (the r1>r2) into the little radius of curvature r2 of the radius of curvature r1 of the fillet 48 on two axial end portions of the axial region 24 in polished zone (describing after a while) to.
The first adapter 12a and the second adapter 12b comprise: corresponding sliding part 32, and they can resist the spring force of unshowned pressure control spring (describing after a while) and polishing roll 16a, 16b as one man along the direction displacement shown in the arrow A; A pair of corresponding guide rod 34a, 34b are used for guided slidable part 32; Unshowned pressure control spring is used for towards workpiece 18 bias slide parts 32; And corresponding knob 36, the spring force (see figure 2) that is used to regulate pressure control spring.
When the operator catches knob 36 and during along specific direction turning knob 36, pressure control spring is set to initial setting load (pre-loaded pressure is described after a while).
As shown in Figure 2, between the central interior of polishing roll 16a, 16b and rotating shaft 14, plug a plurality of needle bearings 38 that are used to absorb the radial load on polishing roll 16a, the 16b, and at polishing roll 16a, 16b and join between the support plate 39 of sliding part 32 and plug a plurality of ball bearings 40 that are used to absorb the thrust on polishing roll 16a, the 16b.Prevent that by the nut 42 that is assemblied on the rotating shaft 14 polishing roll 16a, 16b from deviating from from rotating shaft 14.
Adapter 12a, 12b can be that wherein polishing roll 16a (16b) becomes the type (see figure 2) of cantilever on a side, or the type (see figure 3) that supported by the arm 44a, the 44b that face with each other on its both sides of polishing roll 16a (16b) wherein.
Bent axle machining apparatus 10 according to present embodiment constitutes substantially as mentioned above.The operation and the advantage of bent axle machining apparatus 10 will be described below.
The process of making bent axle 18 at first, below will briefly be described.
On the lathe forging blank is being carried out machined (for example getting out oilhole in blank) afterwards, then the clamping axial region 24 by bent axle machining apparatus 10 and be squeezed into axial region 24 polishing roll 16a, the 16b that contact that roll axial region 24 is polished (plasticity machined).Then, by gas nitriding (GSN) or high-frequency heating (HFQ) etc. workpiece is heat-treated, the finishing workpiece also finally forms product through check afterwards.
As mentioned above, as bent axle being heat-treated of the polishing of (GSN or HFQ) processing execution before based on the roll operation of bent axle machining apparatus 10.
The operation of bent axle machining apparatus 10 will be described below.
After workpiece 18 being set and rotatably be supported on the first maintaining body 22a and the second maintaining body 22b, turning knob 36 to be regulating the spring force of unshowned pressure control spring, thereby pre-loaded pressure is set at designated value.Pre-loaded pressure refers at the pressure that is applied to axial region 24 by polishing roll 16a, 16b clamping and the extruding of arranging opposed to each other each other during as the axial region 24 in polished zone.In other words, pre-loaded pressure refers to the machining surface pressure that axial region 24 receives from polishing roll 16a, 16b.Pre-loaded pressure can be set at the level of the surface roughness that depends on that bent axle 18 is required.
Suppose that when polishing roll 16a, 16b are in its initial position they separate each other with the preset distance apart from the axial region 24 of workpiece 18 radially, and are waiting for the axis linearity of workpiece 18 relative position vertically spaced apart by a predetermined distance.
After the above preparatory stage, for rotary driving source M energising so that workpiece 18 rotate with predetermined angle speed around himself axis.Then, based on control signal from unshowned digital control system, the first adapter 12a and the second adapter 12b along toward each other respective direction towards workpiece 18 displacements, and the axial middle section by polishing roll 16a, 16b clamping axial region 24.
Because workpiece 18 is just around himself axis rotation, the workpiece 18 of positive rotation causes polishing roll 16a, 16b along corresponding rightabout rotation.When the polished surface of the outer surface 20 roll-in axial regions 24 of polishing roll 16a, the 16a of positive rotation, axial region 24 polished rollers polishings.Because polishing, the little concave-convex surface (not shown) on the outer surface of axial region 24 flattens, thereby the surface of good roughness is provided.
When polishing roll 16a, 16b contacted with axial region 24, they should tilt contact (see figure 8) with the polished surface of axial region 24, rather than pressed axial region 24 (see figure 7)s along the direction perpendicular to the axis of axial region 24. Polishing roll 16a, 16b can spend in the scope of 45 degree about 20 with the angle (θ 2) that axial region 24 tilts to contact, and to avoid forming recess 46 (see figure 7)s, if polishing roll 16a, 16b vertically press axial region 24, will form recess in plastic surface.
Across 24 linear orientation of the axial region between them and after beginning roll-in axial region 24, one of them polishing roll 16a (16b) and another polishing roll 16b (16a) are slided with the polished zone of roll-in axial region 24 at polishing roll 16a, 16b along corresponding rightabout (parallel with the axis of bent axle 18 and away from each other direction).
As mentioned above, after the middle section in polishing roll 16a, the polished zone of 16b clamping, the respective direction displacement away from each other of polishing roll 16a, 16b edge is to polish polished zone.Therefore, thus having shortened polishing time obtains higher efficient.
Because polishing roll 16a, 16b are slided along corresponding rightabout, as the fillet 48 on two axial end portions of the axial region 24 in polished zone also can suitably polished roller 16a, 16b fillet 26 roll-ins (seeing Fig. 4 and Fig. 5).Because the radius of curvature r2 of the fillet 26 of each polishing roll 16a (16b) is less than the radius of curvature r1 of the fillet 48 on two axial end portions of axial region 24, fillet 48 can be by suitable roll-in.
The pin and the axle journal that comprise bent axle 18 as the axial region in polished zone.
As shown in Figure 5, polishing roll 16a, 16b can be not linear do not arrange each other opposed to each other perpendicular to the axis of axial region 24, but can be from the relevant position of horizontal-shift slightly towards axial region 24 displacements of bent axle 18 with clamping axial region 24.Afterwards, polishing roll 16a, 16b are slided to polish polished zone along respective direction away from each other.
According to present embodiment, polishing roll 16a, 16b arrange each other opposed to each other across the axial region 24 of bent axle 18, and when bent axle 18 rotations, the axial region 24 of bent axle 18 polishes by polished roller 16a, 16b clamping and roll-in.Therefore, improved the surface nature of the axial region 24 of the bent axle 18 that does not have chamfering, and the designs simplification of bent axle machining apparatus and manufacturing cost are reduced.
Fig. 9 represents another bent axle machining apparatus 110 that is combined with polishing roll 116a, 116b according to embodiment of the present invention.The parts identical with bent axle machining apparatus 10 of bent axle machining apparatus 110 are represented with identical Reference numeral, and following will not being described in detail.
Bent axle machining apparatus 110 comprises a pair of polishing roll 116a, 116b, and they rotatably are supported on can be on the corresponding rotating shaft 14 of the first adapter 12a of the direction displacement of orthogonal three axle X, Y, Z and the second adapter 12b.
Polishing roll 116a, 116b linearity are arranged (seeing Figure 13) perpendicular to the axis of workpiece 18 each other opposed to each other across the axial region 24 (polished zone) of workpiece 18, be arranged in corresponding position, described position is offset equidistance (seeing Figure 14) in opposite direction from the axis that the linear position perpendicular to the axis of workpiece 18 is parallel to workpiece 18 perhaps opposite each otherly.
Each polishing roll 116a (116b) is the identical shaped of roughly plate-like, and has the outer surface that is used for roll-in axial region 24.The outer surface of each polishing roll 116a (116b) has first 120a to the of spine, four 120d of spine, and they have along the equally spaced respective peaks portion (seeing Figure 12) of the axis of polishing roll.Adjacent two peak portion separates each other apart from S among first 120a to the of spine, four 120d of spine, apart from the internal diameter T (S>T) (see Figure 15) of S greater than the oilhole 126 that limits in axial region 24.
The quantity of spine is not limited to four.And the outer surface of each polishing roll 116a (116b) can have at least three spines.The outer surface that is used for contacting with the axial region 24 of bent axle 18 of each among first 120a to the of spine, four 120d of spine has the fillet 28 that section shape is an arc.The radius of curvature r2 of fillet 28 is less than the radius of curvature r1 (seeing Figure 15) of the fillet 48 on two axial end portions of axial region 24.
Adapter can be that wherein polishing roll 116a (116b) becomes the type (see figure 10) of cantilever on a side, or the type (seeing Figure 11) that supported by the arm 44a, the 44b that face with each other on its both sides of polishing roll 116a (116b) wherein.
The bent axle machining apparatus 110 that is combined with polishing roll 116a, 116b according to present embodiment constitutes substantially as mentioned above.The operation and the advantage of bent axle machining apparatus 110 will be described below.
After predetermined set-up procedure, for rotary driving source M energising so that workpiece 18 rotate with predetermined angle speed around himself axis.Then, based on control signal from unshowned digital control system, the first adapter 12a and the second adapter 12b along toward each other respective direction towards workpiece 18 displacements, and the axial middle section by polishing roll 116a, 116b clamping axial region 24.
Because workpiece 18 is just around himself axis rotation, the workpiece 18 of positive rotation causes polishing roll 116a, 116b along corresponding rightabout rotation.During the polished surface of first 120a to the of spine, four 120d of the spine roll-in axial regions 24 on the outer surface 20 of polishing roll 116a, the 116a of positive rotation, axial region 24 polished rollers polishings.Because polishing, the little concave-convex surface (not shown) on the outer surface of axial region 24 flattens, thereby the surface of good roughness is provided.
When the outer surface of polishing roll 116a, 116b contacted with axial region 24, they should tilt contact (seeing Figure 17) with the polished surface of axial region 24, rather than pressed axial region 24 (seeing Figure 16) along the direction perpendicular to the axis of axial region 24. Polishing roll 116a, 116b can spend in the scope of 45 degree about 20 with the angle (θ 2) that axial region 24 tilts to contact, to avoid forming recess 46 (seeing Figure 16), if polishing roll 116a, 116b vertically press axial region 24, will in plastic surface, form recess.
Across 24 linear orientation of the axial region between them and after beginning roll-in axial region 24, one of them polishing roll 116a (116b) and another polishing roll 116b (116a) are slided with the polished zone of roll-in axial region 24 at polishing roll 116a, 116b along corresponding rightabout (parallel with the axis of bent axle 18 and away from each other direction).
As mentioned above, after the middle section in polishing roll 116a, the polished zone of 116b clamping, the respective direction displacement away from each other of polishing roll 116a, 116b edge is to polish polished zone.Therefore, thus having shortened polishing time obtains higher efficient.
Because polishing roll 116a, 116b are slided along corresponding rightabout, as the fillet 48 on two axial end portions of the axial region 24 in polished zone also can suitably polished roller 116a, 116b fillet 28 roll-ins (seeing Figure 13 and Figure 14) of first 120a of spine (or the 4th 120d of spine).
As shown in figure 14, polishing roll 116a, 116b can be not linear do not arrange each other opposed to each other perpendicular to the axis of axial region 24, but can be from the relevant position of horizontal-shift slightly towards axial region 24 displacements of bent axle 18 with clamping axial region 24.Afterwards, polishing roll 116a, 116b are slided to polish polished zone along respective direction away from each other.
According to present embodiment, polishing roll 116a, 116b arrange each other opposed to each other across the axial region 24 of bent axle 18, and when bent axle 18 rotations, the axial region 24 of bent axle 18 polishes by polished roller 116a, 116b clamping and roll-in.Therefore, improved the surface nature of the axial region 24 of the bent axle 18 that does not have chamfering, and the designs simplification of bent axle machining apparatus and manufacturing cost are reduced.
In addition, according to present embodiment, on the outer surface of polishing roll 116a (116b), be furnished with first 120a to the of spine, four 120d of spine, they have along the equally spaced respective peaks portion of the axis of polishing roll 116a, and adjacent two peak portion separates among first 120a to the of spine, four 120d of spine apart from the internal diameter T of S greater than oilhole 126.Therefore, even exist oilhole 126, the first 120a to the of spine four 120d of spine also can not fall into oilhole 126 in the polished zone, thereby can not damage the periphery of oilhole 126.
Therefore, according to present embodiment, even there is oilhole 126 in the polished zone, polished zone also can suitably be polished, thereby the surface of good roughness is provided.

Claims (12)

1. one kind is carried out mach method to bent axle, and this method may further comprise the steps: (16a 16b) arranges across the axial region (24) of the bent axle between them (18) opposite each otherly to make a pair of polishing roll; Utilize described polishing roll (16a, the described axial region (24) of the described bent axle of outer surface 16b) (20) clamping (18); And (16a, 16b) rotation is with the described axial region of roll-in (24) to make described bent axle (18) and described polishing roll.
2. method according to claim 1, wherein, at described polishing roll (16a, 16b) after the substantial middle zone of described axial region (24) displacement of described bent axle (18) and the described axial region of clamping (24), (16a 16b) slides with the described axial region of roll-in (24) along the axial edge respective direction away from each other of described bent axle (18) to make described polishing roll.
3. method according to claim 1 wherein, before described bent axle (18) is comprised the heat treated heat treatment of high frequency at least, is polished described axial region (24) by roll-in.
4. one kind is carried out mach equipment to bent axle, and this equipment comprises:
Maintaining body (22a, 22b), described maintaining body is used to keep two axial end portions of bent axle (18), makes that this bent axle (18) is rotatable; And
A pair of polishing roll (16a, 16b), described polishing roll is arranged across the axial region (24) of the bent axle between them (18) opposite each otherly;
Wherein, by described polishing roll (16a, the described axial region (24) of the described bent axle of outer surface 16b) (20) clamping (18), and (16a, 16b) rotation is with the described axial region of roll-in (24) to make described bent axle (18) and described polishing roll.
5. equipment according to claim 4, wherein, (16a 16b) is the identical shaped of roughly plate-like to each described polishing roll, and the described outer surface (20) that is used for the described axial region of roll-in (24) comprises single flat surfaces.
6. equipment according to claim 4, wherein, described polishing roll (16a, 16b) arrange opposed to each other each other by linear axis perpendicular to described bent axle (18).
7. equipment according to claim 4, wherein, (16a 16b) is arranged in corresponding position to described polishing roll opposite each otherly, and described position is offset equidistance in opposite direction from the axis that the linear position perpendicular to the axis of described bent axle (18) is parallel to described bent axle (18).
8. equipment according to claim 4, wherein, each described polishing roll (16a 16b) forms cantilever by a support member on the one side, perhaps on its both sides by a plurality of supports support.
9. equipment according to claim 5, wherein, each described polishing roll (16a, the described outer surface (20) that is used for contacting with the described axial region (24) of described bent axle (18) 16b) has fillet (26), and the radius of curvature of this fillet (r2) is less than the radius of curvature (r1) of the fillet (48) on two axial end portions of described axial region (24).
10. one kind is used for the bent axle polishing roll that this axial region (24) polished by the axial region (24) of roll-in bent axle (18), and this bent axle polishing roll comprises:
A pair of polishing roll (116a, 116b), described polishing roll is arranged across the axial region (24) of the bent axle between them (18) opposite each otherly;
Each described polishing roll (116a, 116b) be the identical shaped of roughly plate-like, and have the outer surface (20) that is used for the described axial region of roll-in (24), and described outer surface (20) has a plurality of spines (120a to 120d), and described spine has equidistant axially spaced respective peaks portion;
Adjacent two the described peak portion distance (S) that separates each other in the described spine (120a to 120d), this distance is greater than the internal diameter (T) of the oilhole (126) of qualification in described axial region (24).
11. bent axle polishing roll according to claim 10, wherein, described spine comprises at least three spines.
12. bent axle polishing roll according to claim 10, wherein, the described outer surface (20) that is used for contacting with the described axial region (24) of described bent axle (18) of described spine (120a to 120d) has fillet (26), and the radius of curvature of this fillet (r2) is less than the radius of curvature (r1) of the fillet (48) on two axial end portions of described axial region (24).
CN200680021336XA 2005-06-15 2006-06-15 Burnishing roller for crankshaft Expired - Fee Related CN101198441B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2005175190A JP2006346802A (en) 2005-06-15 2005-06-15 Method and device for machining crankshaft
JP2005175184A JP4753634B2 (en) 2005-06-15 2005-06-15 Vanishing roller for crankshaft
JP175190/2005 2005-06-15
JP175184/2005 2005-06-15
PCT/JP2006/312048 WO2006135014A1 (en) 2005-06-15 2006-06-15 Method and device for processing crankshaft and burnishing roller for crankshaft

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CN101198441A true CN101198441A (en) 2008-06-11
CN101198441B CN101198441B (en) 2012-06-20

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CN102548684A (en) * 2010-09-17 2012-07-04 丰田自动车株式会社 Crankshaft production method and production apparatus
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